4 papers
Tunable many-body burst in isolated quantum systems
Shozo Yamada, Akihiro Hokkyo, Masahito Ueda
Thermalization in isolated quantum many-body systems can be nonmonotonic, with its process dependent on an initial state. We propose a numerical method to construct a low-entangled…
Quantum feedback cooling of a trapped nanoparticle by using a low-pass filter
Shuma Sugiura, Masahito Ueda
We propose a low-pass-filter (LPF) feedback control for cooling a trapped particle with a low-pass filter, which utilizes a shift of the potential caused by the feedback operation.…
Quantum i.i.d. Steady States in Open Many-Body Systems
Takanao Ishii, Masahito Ueda
Understanding how a quantum many-body state is maintained stably as a nonequilibrium steady state is of fundamental and practical importance for exploration and exploitation of ope…
Universal Upper Bound on Ergotropy and No-Go Theorem by the Eigenstate Thermalization Hypothesis
Akihiro Hokkyo, Masahito Ueda
We show that the maximum extractable work (ergotropy) from a quantum many-body system is constrained by local athermality of an initial state and local entropy decrease brought abo…